白酒酿造副产物全利用生产发酵饲料的研究  

Study on the production of fermented feed full utilization of Baijiu brewing by-products

作　　者：林捷 郑佳 王风青 刘军 舒林 李丽 LIN Jie;ZHENG Jia;WANG Fengqing;LIU Jun;SHU Lin;LI Li(College of Bioengineering,Sichuan University of Science&Engineering,Yibin,Sichuan Province 644000,China;Wuliangye Yibin Co.,Ltd,Yibin,Sichuan Province 644000,China)

机构地区：[1]四川轻化工大学生物工程学院,四川宜宾644000 [2]宜宾五粮液股份有限公司,四川宜宾644000

出　　处：《中国饲料》2024年第9期118-124,共7页China Feed

基　　金：五粮液股份有限公司产学研合作项目(CXY2020ZR001,CXY2019ZR016);四川轻化工大学“652”创新团队计划(SUSE652B003)。

摘　　要：丢糟和底锅水作为白酒酿造的副产物产量巨大,利用丢糟和底锅水生产发酵饲料能有效提高其资源的二次利用率。本研究以白酒酿造副产物为主要原料,辅助添加棉籽粕、豆粕和麸皮,共同生产发酵饲料,通过单因素试验和正交试验结合,以酸溶蛋白/粗蛋白质(ASP/CP)为指标,探究原料组合、蛋白酶添加量、菌液接种量、发酵温度和发酵时间对发酵饲料的影响。结果表明:以丢糟和底锅水为主要原料,辅以棉籽粕、豆粕和麸皮,生产发酵饲料的最佳工艺条件为:丢糟添加量37%(m/m),棉籽粕26%(m/m),豆粕22%(m/m),麸皮15%(m/m),酸性蛋白酶添加量1%(m/m),菌液接种量2.5%(V/m),发酵温度40℃,发酵时间4 d。与优化前相比,ASP/CP提高了125.46%。本研究为白酒酿造副产物的综合再利用提供了一条途径,而且改善了丢糟饲料的蛋白质品质,提高了发酵饲料的经济价值。As the by-products of Baijiu brewing,waste grains and pot water have a huge yield.The traditional treatment method causes environmental problems such as soil pollution,soil degradation and harmful gas discharge.However,using waste grains and pot water to produce fermented feed can effectively improve the secondary utilization rate of its resources.In this study,the by-product of liquor brewing was used as the main raw material,supplemented with cottonseed meal,soybean meal and bran,and the fermented feed was produced together.Single factor experiment and orthogonal experiment were combined,and acid-soluble protein/crude protein(ASP/CP)was used as the index.The effects of raw material combination,the amount of protease,the inoculum amount of bacterial liquid,fermentation temperature and fermentation time on the production of fermented feed by using all the water in the waste pot were investigated.The results showed that the best technological conditions for producing fermented feed with grains and pot water as main raw materials,supplemented with cottonseed meal,soybean meal and bran were:distiller’s grains 37%(m/m),cottonseed meal 26%(m/m),soybean meal 22%(m/m),wheat bran 15%(m/m),acid protease content 1%(m/m),inoculation amount 2.5%(V/m),fermented at 40℃for 4 d.Compared with control,the ASP/CP increased 125.46%.This study provided a way for the comprehensive reuse of liquor brewing byproducts,improved the protein quality of waste feed and increased the economic value of fermented feed.

关 键 词：丢糟 底锅水 固态发酵 生物饲料 

分 类 号：S816.6[农业科学—饲料科学]